Hose-coupling



E. A. RUSSELL AND S. P. HARBIMAN.

I HOSE COUPLING. APPLICATION FILED JULY 24, 1916.

Patented July 13, 1920.

4 SHEETS-SHEET 1.

[N N TORI TTORNEYJI I 2% w B E. A. RUSSELL AND S. P. HARRIMAN.

HOSE COUPLING.

APPLICATION FILED JULY 24, me.

1,346,422. Pat t d uly 13, 1920.

4 SHEETSSHEET 2.

ATTORNEY} E. A. RUSSELL AND S. P. HARRIMAN.

HOSE COUPLING. APPLICATION FILED JULYZ4, I9I6.

Patented July 13, 1920.

4 SHEETS-SHEET 3.

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E. A. RUSSELL A ND.S. P. HARRIMAN. HOSE COUPLING.

APPLICATION FILED JULY24, 1916.

1 46,422, Patented July 13, 1920.

4 SHEETS-SHEET 4.

E m fi m AT T ORNE VJ.

UNITED sures PATENT OFFICE.

EDWARD A. RUSSELL AND SEELYE P. HARRIMAN, or .CHICAGO, rttxuorsAsslonons BY MESNE ASSIGNMENTS, TO ROTH MANUFACTURING COMPANY, ILLINOIS,A CORPORATION OF ILLINOIS.

or oi-rroiieo,

nosn-courLine.

To (all whom it may concern:

Be it known that we, EDWARD A. RUSSELL and Snunrn P. l-TAuniMAN,citizens of the United States, residing at Chicago, in the county ofCook'and State oi Illinois, have invented certain new and usefulImprovements in 'llosaCouplings, of which the following is aspecification.

Our invention relates to hose couplings, particularly to couplings forconnecting the hoses or equi *alen't elements in the steam train lineson railway cars.

The principal object of the invention is to provide certain improvementsupon the type of hose coupling shown in our copending application SerialNo. 73,885,1iled January 24, 1916, for hose coupling whereby the hosecoupling is simplified and the cost 01 lmmufacture thereof reduced. Thepresent invention also provides a lighter, more con1- pact coupling,which is a matter of considerable importance, and one which is operatedmore ronwiniently.

The invention is illustrated in a preferred embodiment in the accom'ianying drawings wherein- Figure 1 is a plan View of a couplerembodying the principles of our invention shown as connected with acoupler member of the type heretofore in use on railroads.

Fig. 2 is a longitudinal, sectional view on line 2-2 of Fig. 1.

Fig. 3 is a fragmentary sectional View on line 25-43 of Fig. 1.

Fig. l is a plan View of the coupler heads shown in the precedingfigures illustrating the manner in which the coupling cams are broughtinto engagement. I

Fig. 5 is a sectional view on line 5-5 of Fig. l, but indicating theposition of the coupler heads after the cams have been engaged butbefore the one gasket has been brought into contact with the other.

rig. 6 is a longitudinal sectional view of the improved coupler shown inthe preceding figures, but illustrating the parts in the pos1- tionwhich they take while being assembled.

Fig. 7 is a sectional elevation on line 7-7 of Fig. 6.

"Fig. 8 is a similar view, but showing the parts in their operativeposition.

Fig. 9 is a view in perspective of what will. be termed the couplingmember of the coupler.

Specification of Letters Patent.

Patented J My 1 3, 1929. and this application filed July 24,

Fig. 10 a similar view of the gasket holding or conduit member. Fig. 11a side view of arena named'member.

I ig s. 12 and 13 views in perspective o'f the cam ring for effecting arelative longitudinal movement as between the conduit member and thecoupling member.

Like characters of reference indicate like parts in the several figuresof the drawings.

Referring to the drawings, designates a coupler of the blewail typecommonly used on railroads at the present time. 26 is the gasketol thecoupler which has a fixed relation with the coupler head 25. 27 is anarcuate cam lug on one side of the coupler head, and 28 an armprojecting from the other side of tliecoupler head provided with anmilder-cut cam lug 29 adapted to engage with a cam lug on the matingcoupler head correspoiniling to lug 27. 30 is the nipple to which thehose (not shown) is attached. The coupler is shown as provided with alocking pin 31 manipulated by handle32. A coupler or this type isdisclosed in Letters Patent No. 1,118,123 granted to Egbert H. Gold onNovember Qel, 1914.

it will be understood that the coupler of the type just described iscoupled with its mating coupler by rocking the two devices in a verticalplane so that the extremities of their interlocking arms are tiltedupwardly, bringing the gaskets together at the lower most points ontheir meeting "faces and then rocking the couplers dmvnwardly towardeach other, so that the interlocking cam lugs will engage with eachother and the coupler heads be brought to a horizontal position,'inwhich they are held by gravity assisted, ordinar'ily, by some form oflock such as the lock pin 31 described. The operation is re versed whenthe devices are uncoupled. These rocking movements bend the rubber hosewhich, being made quite heavy at the present time, are likely soon tobecome crackedor worn at the places where they are flexed. Besides this,the fulcrum of the rocking movements is, as stated, at the lower edgesof the gaskets. This tends to crush or otherwise injure the gaskets atthese points so that the life of the gasket of a gravity type coupler isshort. There is another objection tothe gravity or Sewall type ofconpler. In order that the joint between the couplers be steam-tight, itis necessary that the mating faces of the gaskets be pressed togetheraccurately and with some force. This is intended to be brought aboutthrough expansibility of the gaskets.

being subjected to pressure and the temperature of steam and aresometimes made originally shorter than they should be. As a result ofeither condition the coupling will leak and waste steam. Furthermore, toobtainany considerable amount of longitudinal expansion at thetemperature of steam, it is necessary to make the gaskets relativelylong, which is an item of expense, as the Jenkins material and the othersimilar compounds from which the gasketsaremade are relativelyexpensive.

The coupler of our invention, which is shown at the left hand side ofFigs. 1, 2, 4 and 5 and in detail in the other figures of the drawings,while capable of mating with every style of gravity straight portcoupler in use on railroads, has none of the disadvantages, above noted,of the ordinary gravity coupler.

Instead of employing a coupler head con sisting of a single rigidcoupler with which: the gasket has a fixed relation, the ClGVlCQ' or ourinvention consists of what may be termed a coupling member 33, a gasketholding or conduit member 34, movable with relation to the couplingmember, and means, preferably a cam ring 35, for effecting a relativelongitudinal movement as between the conduit member and the couplingmember. The coupling member 33 is formed preferably with the usuallocking arm 36 which may be provided with an undercut locking camsimilar to the locking cam 29 above described but which preferably isformed with an opening 3'? bounded on one side by an arcuate bevelededge 38. ()n the other side of the coupling member is a cam lug 39corresponding to the cam lug 27 of coupler head 25. Above cam lug 39 isa lateral projection 40. The coupling member has a. circular opening 4L1for the conduit member 34 and 'is provided on its face adj acent camring 35 with diametrically arranged pro ections 42 for the cam ring tobear against.

The conduit member 34. has its inner extremity bent up and threaded at43 for the hose nipple 44. The other end is provided, preferably, with aboss or enlargement 45 in which is arranged a gasket holder 46 which maybe keptin place in any suitable manner. We have shown the gasket asprovided with an interior metal annulus 47 formed with a grooved portion48 to receive a spring locking ring 49, the extremities 50 of whichproject through an opening 51 in the grooved portion of the annulus. Thelocking ring 49 lies against an interior shoul- As a matter of fact, thegaskets sometimes shrink after der 52 on the conduit member 34 but canbe contracted by pressing its extremities 50 together so as to clear theshoulder and allow the removal of the gasket. The'conduit member isprovided with diametrically arranged projections 53 against which camring 35 is adapted to bear, and is also formed with a lug 54 whichstands on the opposite side of the cam ring from projections 53 when theparts of the coupler are assembled. The lug 54; fits into a recess 55formed in the coupling member and one of the projections 53 in the slot56 formed in a projecting web 57 on the locking arm 36. The contour ofthe cam ring 35 is such that when in operative position and given apartialrotationby means of handle 58, it produces a relativelongitudinal movement between the conduit member and the couplingmember, the projections 53 being arranged at approximately ninetydegreees from projections 4L2 so that the conduit or gasket holdingmember has a certain capacity for angular self-adjustment to insureproper contact between gasket 46 and the gasket of the mating coupler.To insure better frictional engagement between the parts of the couplerthe cam ring is preferably formed with serrated surfaces 59. The camring is formed with an interior recess or transverse groove 60 and theparts of the coupler are assembled by placing the'ring between the topportion of the coupling member and its web 57 with groove 60 inalineinent with groove 56, which is a little out or" alinement withrecess 55, and thrusting the small or bent end of the conduit memberthrough the ring and coupling member until lug 54 passes through slot 56into groove 60 in the ring, when the ring and conduit member are turneda trifle until lug 54: alines with recess 55 and the projection 53adjacent lug 5a with slot 56. The conduit member may then be pushed therest of the way through the ring and coupling member.

Figs. 6 and 7 show the parts in the positions just described. To preventdisengagement the ring is rotated from this position to the positionshown in Fig. 8 and stop pin 61 is inserted in the perforation 62 in web57 so as to form a stop abutment for a shoulder 63 formed on the ring;Movement of the ring in the opposite direction is limited by a shoulder6% which abuts against the upper projectionQ of the couplingmember.

Operation: When the coupler of our invention is to be coupled up withanother coupler, for example, with gravity type coupler 25, the twocouplers are brought together by aisidewise movement of one toward theother without rocking either one of them, their axes, in other words,remaining ating cam ring will, of course, be turned in such position asto retract the conduit member M as far as need be. Fig. a shows themanner in which the couplers are brought one against the other as justdescribed. As soon as the interlocking cams 38, 27 and 29, 39 arebrought into alinement with each other, the coupler heads may bereleased, with the result that the cams will engage, bringing thegaskets 28, 41-6 together at the top, as indicated in Fig. If theimproved coupler of our present invention be mated with another of thesame construction, the gaskets will not ordinarily touch at all untilthe conduit members are moved forward. This movement is effected bypartially rotating the cam ring 35. Either or both cam rings may be sorotated in case the coupling of our invention is matedwith one of thesame construction. The gaskets in this way will be forced one againstthe other and the rotation of the cam ring may be continued until thegaskets are pressed against each other as tightly as may be necessary inorder to make a perfectly steamtight joint. The advantage of forming thelocking arm 36 with the opening 37 for the cam lug of the other couplerinstead of forming it with the usual undercut cam projection is that theabutment thereby provided. for the straight edge or edges of the cam lugtends to prevent the rocking of one coupler with respect to the otherbefore the gaskets are in contact or while they are being forced oneagainst the other. It will be seen that a little variation in the lengthof the gasket which, in ordinary couplers, will result either in a leakyjoint or in injury to the gaskets, is a matter of no consequence in thecoupler of our invention. Moreover, as it is not necessary to rely uponthe expansibility of the gaskets to insure a steam-tight joint, aneconomy can be effected by using short gaskets. The cam ring operatesbetween two diametrically opposite projections on the coupling memberand two like projections on the conduit member which are arranged atapproximately ninety degrees from the first named pair of projections.'This gives the conduit member capacity for rocking a little in anydirection necessary to insure an accurate seating of the gasket facesone against the other. The provision of the coupling member with thelateral projection 40 is important. This uiojection prevents the arm ofthe other coupler from being forced up on cam lug 39 when longitudinalpressure is exerted through rotation of cam ring 35. If the cam on thelocking arm engaging cam lug 39 accurately fits cam lug 39, there islittle danger of any slip between the two interlocking cams. But thecams of the various makes of couplers in use on railroads, are

not always uniform in their contours. there is only a point engagementbetween the pair of co-engaging cams, the pressure produced by thethrust of thecam ring is likely to produce a slip which, were it notchecked by projection ll would make the interlock between the couplersinsecure. llhile the device of our invention has no supplemental lock,and is simplified thereby, the operation of the cam ring, particularlywhen its edges are serrated, as shown, to increase friction, taken inconjunction with the arrangement of the stop lug ail) above the arm ofthe mating coupler head, to effectively and positively lock the matingcouplers together.

.The coupler of our invention is very light and is not expensive tomanufacture. lit has all of the advantages possessed by the Fiewall orgravity type straight port coupler, except the capacity forautomatically uncoupling, and this is a feature which is regarded withlittle favor by ailroads, as is shown by the recent practice, which isbecoming more common, of providing coupiers with positive supplementallocks.

While we have described our invention in a preferred embodiment, it willbe understood that modifications might be made witaout departure fromthe principles of the invention. Therefore, we do not wish to beunderstood as limiting the invention to the precise arrangements,constructions and devices shown and described except so far as certainof the claims herein are specifically so limited.

W e claim:

1. A hose coupler comprising a coupling member adapted to mate with acoupler of the Sewall type, a conduit member movable with respect to thecoupling member, and a cam positioned adjacent the outer face of thecoupling member surrounding the conduit member and engaging with saidmembers so that its rotation in one direction produces relativemovements between said members whereby the conduit member is seatedagainst the corresponding part of the mating coupler while its rotationin the op posite direction withdraws said conduit the Sewall type, aconduit member extending through said coupling member and formed with anenlargement at its outer end, and a cam ring surrounding said conduitmember and interposed between the enlargement thereof and said couplingmember.

4%. A hose coupler comprising a coupling 7 member adapted to mate with acoupler of the Sewall type, a conduit member which extends through saidcoupling member and is provided at its outer end with a pair ofdiametrically arranged lugs, a pair of diametrically arranged lugs onthe coupling member at substantially right angles to the lugs of theconduit member, and a cam member interposed between said lugs.

5. A hosecoupler comprising acoupling member adapted to mate with acoupler of the Sewall type, a conduit member which extends through saidcoupling member and is provided at its outer end with a pair ofdiametrically arranged lugs, a pair of diametrically arranged lugs onthe coupling member at substantially right angles to the lugs of theconduit member, and a cam ring surrounding said conduit member andinterposed between said pairs of lugs.

6. A hose coupler comprising a coupling member, adapted to mate with acoupler of the Sewall type, a conduit member movable with respect tosaid coupling member, and means for effecting a relative movement asbetween said members, which seats said conduit member against thecorresponding part of the mating coupler, and a lateral projection onsaid coupling member adapted to stand over the locking arm of the matingcoupler.

7. A hose coupler comprising a coupling member adapted to mate with acoupler of the Sewall type, a conduit member adapted to extend and bemovable longitudinally through the coupling member and formed with anenlargement at the outer end for holding a gasket, a cam ring whichsurrounds said conduit member and bears against said enlargement, a lugon the conduit member which stands on the'other side of the cam ringfrom said enlargement, and a web on the coupling member which stands 7in front of the cam ring.

'8. A. hose coupler comprising a coupling member adapted to mate with acoupler of the-Sewall type, a conduit member adapted to extend and bemovable longitudinally through the coupling member and formed 9. A hosecoupler comprising a coupling memberadapted to mate with a coupler ofthe Sewall type, a conduit member adapted to extend and be movablelongitudinally through the coupling member and formed with anenlargement at the outer end for holding a gasket, a cam ring whichsurrounds said conduit member and bears against said enlargement, a lugon the conduit member which stands on the other side of the cam ringfrom said enlargement, and a web on the coupling member which stands infront of the cam ring, said ring and web being slotted to permit the lugon the conduit member to pass said web and ring in assembling, thecoupling member being formed with a recess to receive said lug.

10. A hose coupler comprising a coupling the Sewall type, a conduitmember adapted to extend and be movable longitudinally throng-lithecoupling member and formed with an enlargement at the outer end forholding a gasket, a cam ring which surrounds said conduit member andbears against said enlargement, a lug on the conduit member which standson the other side of the cam ring from said enlargement, a web on thecoupling member which stands in front of the cam ring, said ring and webbeing slotted to permit the lug on the conduit member to pass said weband ring in assembling, and stop members on the cam ring and web, theone on the latter being 7 member adapted to mate with a coupler of premovable, to keep the slot in the ring out of alinement with the slotin the web.

11. A hose coupler comprising a coupling member adapted to en age with acoupler of the Sewall type,-provided with a circular opening and formedwith diametrically arranged lugs on its outer face, a conduit memberadapted to project through the opening in the coupling member and formedwith diametrically arranged lugs which stand at substantially rightangles to the lugs on the coupler member, a cam ring sur rounding saidconduit member and interposed between the same and the outer face of thecoupling member, a lug on the con.- duit member, which stands on theopposite side of the cam ring from the other lugs on the conduit member,said coupling member being formed with a recess to receive said lastmentioned lug, and a web on the coupling member which stands in front ofthe cam ring, said web and cam ring being formed with slots to permitsaid last mentioned lug and the lug adjacent thereto 011 the conduitmember to pass the'web and ring when. the parts of the device areassembled.

12. A hose coupler comprising a coupling member adapted to engage with acoupler of the Flewall type, provided with a circular opening and formedwith diametrically arranged lugs on its outer face, a conduit memberadapted to project through the u the coupling member and formedmetrically arranged lugs which stand at substantially right angles tothe lug on the coupler member, a cam ring surrounding said condrit.iember and interposed between the same and the outer face of thecoupling member, :2 lug on the conduit member which stands on theopposite side of the cam ring from the other lugs on the conduit member,said coupling member being formed with a recess to receive said lastmentioned lug, and a web on the coupling member which stands in front ofthe cam ring, said web and cam ring being termed with slots topermitsaid last mentioned lug and the lugadjacent thereto on the conduitmembe to pass the web and ring when the parts of the device areassembled, said cam ring and web being provided with cocngaging stops,that of the web being removable, to limit the angular movement of thecam ring.

A hose coupler comprising a coupling member provided on one side with alatoral projection and on the other with a forwardly extending armadapted to engage a mating coupler; a conduit member movable withrespect to the coupling member, and a cam positioned adjacent the outerface of the coupling member surrounding the conduit member and engagingwith said mem bers so that a rotation of the ca 1 in one directionproduces relative movement between said members whereby the conduitmember is seated against the corresponding part of the mating couplerwhile its rotation in the opposite direction withdraws said conduitmember trom operative contact with said mating coupler.

14. A hose coupler comprising a coupling member prin'iced on one sidewith a lateral projection and on the other with a -torwardly extendingarm adapted to engage a mating coupler, a conduit member movable withrespect to said coupling member, and a cam ring positioned adjacent theouter face of the coupling member surrounding said conduit member andbears on opposite sides against parts thereof and also bears againstsaid coupling member so that its rotation produces relative longitudinalmovements between one of said members and the other in both directions.

it hose coupler comprising a coupling member provided on one side with alateral projection and on the other with a forwardly extending armadapted to engage a mating coupler, a conduit member extending throughsaid coupling member and formed with an enlargement at its outer end,and a revoluble cam ring surrounding said conduit member and interposedbetween the enlargement thereof and said coupling member and engagedwith said members so that its rotation in opposite directions producesrelative movements in oppo site directions of one member with respect tothe other.

16. A hose coupler comprising a coupling member, a conduit member whichextends through said coupling member and is provided at its outer endwith a pair of diametrically arranged lugs, a pair of diametricallyarranged lugs on the coupling member at substantially-right angles tothe lugs of the conduit member, and a cam member interposed between saidlugs.

17. A hose coupler comprising a coupling member, a conduit member whichextends through said coupling member and is provided at its outer endwith a pair of diametrically arranged lugs, a pair of diametricallyarranged lugs on the coupling member at substantially right angles tothe lugs of the conduit member,and a cam ring surrounding said conduitmember and interposed between said pairs of lugs.

18. A hose coupler comprising a coupling member, a conduit memberadapted to extend and be movable longitudinally through the couplingmember and formed with an enlargement at the outer end for holding agasket, a cam ring which surrounds said conduit member and bears againstsaid enlargement, a lug on the conduit member which stands on the otherside of the cam ring from said enlargement, and a web on the couplingmember which stands in front of the cam ring.

19. A hose coupler comprising a coupling member, a conduit memberadapted to extend and be movable longitudinally through the couplingmember and formed with an enlargement at the outer end for holding agasket, a cam ring which surrounds said conduit member and bears againstsaid enlargement, a lug on the conduit member which stands on the otherside of the cam ring from said enlargement, and a web on the couplingmember which stands in front of the cam ring, said ring and web beingslotted to permit the lug on the conduit member to pass said web andring in assembling.

20. A hose coupler comprisng a coupling member, a conduit member adaptedto extend'and be movable longitudinally through the coupling member andformed with an enlargement at the outer end for holding a gasket, a camring which surrounds said conduit member and bears against saidenlargement, a lug on the conduit member which stands on the other sideof the cam ring from said enlargement, and a web on the coupling memberwhich stands in front of the cam ring, said ring and Web being slottedto permit the lug on the conduit member to pass said web and ring inassembling, the coupling member being formed with a recess to reecivesaid lug.

211 A hose coupler comprising a coupling member, a conduit memberadapted to extend and be movable longitudinally through being removable,to keep the slot in the ring out of alinement with the slot in the web.

22. A hose coupler comprising a coupling member provided with a circularopening and formed with diametrically arranged lugs 011 its outer face,a conduit member adapted to project through the opening in the couplingmember and formed with diametrically arranged lugs which stand atsubstantially right angles to the lugs on the coupler member, a cam ringsurrounding said conduit member and interposed between the same and theouter face of the coupling member, a lug 011 the conduit member whichstands" on the opposite side of the cam ringfrom the other lugs on theconduit member, said coupling member being formed with a recess toreceive said last inentioned lug, and a web on the couplingsubstantially right angles to the lugs on the coupler member, a cam ringsurrounding said conduit member and interposed between the same and theouter face of the coupling member, a lug on the conduit member whichstands on the opposite side of the cam ring from the. other lugs on theconduit member, said coupling member being formed with a recess toreceive said last mentioned lug, and a 'webon the coupling member whichstands in'front of the cam ring, said web and cam ring being formed withslots; to permit said 'into intimate contact with said last mentionedlug and the lug adjacent thereto on the conduit member to pass the weband ring when the parts of the device are assembled, said cam ring andweb being provided with co-engaging stops, that of the web beingremovable, to limit the angular movement of the cam ring.

24-. A hose coupler comprising a coupling member formed on one side witha cam lug, on the other side with a longitudinally projecting lockingarm for engagement with a mating coupler and above said cam lug with'member movable longitudinally but non-rotatable with respect to saidcoupling mem ber, and means for effecting a relative longitudinalmovement as between said members.

26. A hose coupler comprising a coupling member formed on one side witha curved undercut cam lug and on the other side with a longitudinallyprojecting arm having an opening therein bounded on one side by a curvededge adapted to engage a curved cam lug on a mating coupler, a conduitmember longitudinally movable with respect to the coupling member andmeans for effecting a relative movement between said members.

27. A hose coupler comprising a coupling member formed on one side witha cam lug and an outwardly projecting lug above said cam lug and on theother with a longitudinally projecting locking arm having an openingtherein whereby said arm may engage a cam lug on a mating coupler, aconduit member movable with respect to said coupling member, and meansfor'producing a relative movement between said conduit and couplingmembers.

28. A hose coupler comprising a conduit member, a coupling memberprovided with a lateral projection on one side thereof dapted to beengaged by a mating coupler, and a longitudinally extending rigid 'armon the other side having an opening through which a lateral projectionon said mating coupler is adapted to extend, and means for effecting arelative movement between said members which brings the conduit memberother coupler.

29. A hose coupler comprising a conduit member a coupling member formedon one side with an under cut lug adapted tobe may engage a projectionon a matin.

neaegaee engaged" by a mating coupler, and on the other side with alongitudinally extending rigid arm having an opening providing an edgeadapted to be engaged by an'undercut lug on said mating coupler, andmeans for effecting a relative movement between said members whichbrings the conduit member into intimate contart with said other coupler.

30. A hose coupler comprising a conduit member, a couplingmember"longitudinally movable with respect thereto provided 011 one sidethereof with a longitudinally prorrting rigid locking arm having anopening bounded along the edge adjacent the end of the arm by a camsurface whereby the coupling member is adapted for engagement with amating coupler, and means for etf'ecting a relative movement betweensaid members.

31. A hose coupler comprising a coupling member formed on one sidethereof with a longitudinally extending rigid locking arm formed with anopening whereby the arm g. coupler, a conduit member movablelongitudinally with respectto the coupling member and means foreffecting a relative movement between said members.

32. A hosecoupler comprising a coupling member formed on one side withan undercut cam" lug and onthe other side with a longitujdinallyprojecting rigid locking arm formed with an opening adapted to engage anundermit cam lug on a mating coupler, a conduit member longitudinallymovable with respect to said coupling member, and means for effecting arelative movement as between said members.

33; A hose coupler comprising a coupling member formed on one side witha' cam lug and on theotherwith a rigid longitudinally prr'iject-inglocl'rin'g arm formed with an oper'iing, the edge of which adjacent theend of the arm'is in the form of a cam to engage the cam lug of a matingcoupler, a conduit member longitudinally movable with respect to saidcoupling member, and means for effecting a relative movement as betweensaid coupling and conduit members.

A hose coupler comprising a coupling member composed of a transversebody part formed with an opening and a longitudinally projecting lockingarm, a conduit member extending through the opening in the emailinmember and provided at its outer ends with gasket-holding means and withan enlargement, and a camring interpissed between said enlargement andthe body portion of the coupling member; the locking armbeing formedwith an opening adapted to engage the cam lug of a mating coupler, andthe opposite side of the body portion of the coupling member beingformed With a laterally projecting cam lug.

locking arm being formed with an opening adapted to engage the cam lugof a mating coupler, the opposite side of the body portion of thecoupling member being formed with a laterally projecting cam lug, and afixed projection on the coupling member above said last named cam lug.

36. A hose coupler comprising a coupling member formed on one side witha cam lug adapted to be engaged by the locking arm of a mating couplerand with a fixed pro jection above said cam lug, a 0011C. t memberlongitudinally movable with respect to the coupling n ember, and meansfor effecting a relative movement between said members.

37. A hose coupler comprising a coupling member formed on one side witha cam lug adapted to be engaged by the loci-ring arm of 'a matingcoupler, a conduit member longititulinally movable with respect to saidcoupling member, means for effecting a relative movement as between saidmembers, and means for maintaini an cii ective engagement bctw en thelocking arm of the mat ing couplerund said cam lug comprising a lockingarm on the said coupling member having an opening the cdges'ei which areengaged bythe' cam lug on the mating coupler to hold aid couplers insubstantial ahnement.

38. A coupler comprising a coupling'memher and a conduit member, theformer having a locking arm formed with an opening bounded on one sideby a curved edge adapt-- ed to be engaged by the cam lug of a blewalltype coupler, said coupling member and conduit member beinglongitudinally movable with respect to each other whereby the aforesaidcouplers may be engaged without rocking movement, and means for forcingthe meeting faces of said coupiers together. 89. r'ilcoup'lfercomprising a coupling mom-- her and a conduit member, the former havinga locking arm formed with an opening bounded on one side by a curved ed"e adapted to be engaged by the cam lug of a Fiewall type coupler, saidcoupling member and conduit member being longitudinally movable withrespect to each other whereby the afore said coup'lers may be engagedwithout rocking movement, and means for forcing the meeting faces ofsaid couplers together.

40. A coupler comprising a coupling member and a conduit member, theformer havinga locking arm formed with an opening bounded on one side bya curved edgeadapted to be engaged by the cam lug of a Sewall typecoupler, said coupling member and conduit member being longitudinallymovable with respect to each other whereby the -aforesaid couplers maybe engaged without rocking movement, and means for forcing the meetingfaces of said couplers together, said coupli g member being formed onthe side opposite its locking armwith a projection adapted .to standover the locking j armfof the mating coupler.

ll. A coupler comprising a coupling member and a conduit member, theformer hav r opening in the locking arm being formed sothat theaforesaid couplers when engaged are held in substantial aiinement beforetheir meeting faces are forced together.

42. A hose coupler comprising a coupling member adapted to mate with acoupler of the Sewall type, a conduit member adapted to extend and belongitudinally movable through the coupling and formed with anenlargement at its "outer end, a cam'element which seats against theouter face of said coupling member and bears against said enlargement, alug on the conduit member which stands on the other side of the camelement, and a web on said coupling element which stands in front-of thecam element, said cam element and web being formed to permitthe lug onthe conduit member to pass the web and cam element in assembling. V i 17 4:3. A hose coupler comprising a coupling {member adapted'to mate witha couplerof the Sewall type, a conduit member adapted to extend andbelongitudinally movable through the coupling and formed with anenlargement at its outer; end, a cam element which seats against theouter face of said coupling member and bears against said enlargement atdiametricallyoppositepoints,

a lug on the conduit member which stands on the other side of thecamelement, and a web on said coupling element which stands in front ofthe cam clement, said cam ele- 'mcnt and web being formed to permit thea I V a and cam elementin assembling.

a l. A hose coupler comprising a coupling memberadaptedto mate with acoupler of he on the conduit member to pass the Web the the Sewall type,a conduit member adapted to extend and be longitudinally movable throughthe coupling and formed with an enlargement at its outer end, a camelement which seats againstthe outer face of said coupling member andbears against said formed to permit theilug on the conduit member topass the web and cam element in assembllng. 7

e5. A hose coupler comprismg a couplmg member'provided with means forengaging a mating coupler, a conduit member extend ing movably andloosely through said coupling member and, a wedging' element interposedbetween the-outer face'of the coupling member and the conduit memberwhich engages the conduit member at two diametrically opposite pointsonly.

46. Ahose couplercomprising a coupling member provided with means forengaging a mating coupler, a conduit member "extending movably, andloosely through said coupling member and formed at its outer end with apair of diametrically arranged projections and a wedging elementinterposed between the'outer face of the coupling member andsaid-projections on the conduit memher for. imparting longitudinalmovement to latter. A I 7 n. A hose coupler comprlsmg acoupling memberprovided with means for engaging the mating coupler, a conduit memberextending movably andlooselythrough said coupling member and formed atits outer ends with a pair of diametrically arranged projections, andacam ring surrounding the conduit member I and, bearing against theouter face of said coupling member and the projections on said conduitmember for imparting longitudinal movements to the conduit member. v

48. A hose coupler comprising a coupling member provided with means forengaging a' mating coupler, a conduit member eX- tending movably andloosely through said coupling member, the outer end of which is enlargedlaterally, anda' .wedging element interposed between the outer face .ofthe coupling'member and the enlarged portion of the conduit member forimparting longitudinal movement to the conduit member, 7 7 EDWARD A.RUSSELLL j V SEELYEP. HARRIMAN,

